An important role in the connoisseurship of a print, a watermark is an image, logo, or symbol embedded in a sheet of paper that identifies the mill at which the paper was made as well as the paper type/style, and in some cases, a date. The mill's logo is woven with wire into the mesh of the paper moulde and as a result less pulp collects on top and around the image making that area of the page thinner. Watermarks, which are typically located in the lower right corner of a sheet of paper, are often only visible when the sheet of paper is held in front of a light.